Grocery executives believe that US consumers see sitting as lazy and standing as diligently working. Whether or not a sufficient percentage of consumers actually hold the belief should be irrelevant, but it’s a cultural norm (even though it’s objectively worse). The government is functioning as an employer in this case, and is somewhat equivalently failing its employees for the sake of perception by the public. The more important government failing to be angry about is that sitting isn’t protected by OSHA, and the bigger societal failing is that capitalism has suppressed unions to the point that they can’t effectively even win this as a reasonable concession.

https://www.fastcompany.com/90836431/why-dont-cashiers-in-the-u-s-get-to-sit-like-the-ones-in-europe